Should i get DMC4 or Ninja gaiden 2?

I heard some bad things about DMC4. Apparently a lot of back-tracking, which is a big gaming no no. NG2 is a good game, especially if your looking for a challenge. Well, only if your looking for a challenge. The game, while very fun, is definitely geared towards the gamer, almost to a masochistic level. I still recommend it over devil may cry. Hope that helps.